+++ /dev/null
-From 061b1bd394ca8628b7c24eb4658ba3535da4249a Mon Sep 17 00:00:00 2001
-From: Greg Kroah-Hartman <gregkh@suse.de>
-Date: Wed, 24 Sep 2008 14:46:44 -0700
-Subject: [PATCH 01/23] Staging: add TAINT_CRAP for all drivers/staging code
-Patch-mainline: 2.6.28
-
-We need to add a flag for all code that is in the drivers/staging/
-directory to prevent all other kernel developers from worrying about
-issues here, and to notify users that the drivers might not be as good
-as they are normally used to.
-
-Based on code from Andreas Gruenbacher and Jeff Mahoney to provide a
-TAINT flag for the support level of a kernel module in the Novell
-enterprise kernel release.
-
-This is the kernel portion of this feature, the ability for the flag to
-be set needs to be done in the build process and will happen in a
-follow-up patch.
-
-Cc: Andreas Gruenbacher <agruen@suse.de>
-Cc: Jeff Mahoney <jeffm@suse.de>
-Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
----
- Documentation/sysctl/kernel.txt | 1 +
- include/linux/kernel.h | 1 +
- kernel/module.c | 11 +++++++++++
- kernel/panic.c | 4 +++-
- 4 files changed, 16 insertions(+), 1 deletion(-)
-
---- a/Documentation/sysctl/kernel.txt
-+++ b/Documentation/sysctl/kernel.txt
-@@ -369,6 +369,7 @@ can be ORed together:
- 2 - A module was force loaded by insmod -f.
- Set by modutils >= 2.4.9 and module-init-tools.
- 4 - Unsafe SMP processors: SMP with CPUs not designed for SMP.
-+ 64 - A module from drivers/staging was loaded.
- 0x40000000 - An unsupported kernel module was loaded.
- 0x80000000 - An kernel module with external support was loaded.
-
---- a/include/linux/kernel.h
-+++ b/include/linux/kernel.h
-@@ -263,6 +263,7 @@ extern enum system_states {
- #define TAINT_DIE (1<<7)
- #define TAINT_OVERRIDDEN_ACPI_TABLE (1<<8)
- #define TAINT_WARN (1<<9)
-+#define TAINT_CRAP (1<<10)
-
- /*
- * Take the upper bits to hopefully allow them
---- a/kernel/module.c
-+++ b/kernel/module.c
-@@ -1894,6 +1894,7 @@ static noinline struct module *load_modu
- Elf_Ehdr *hdr;
- Elf_Shdr *sechdrs;
- char *secstrings, *args, *modmagic, *strtab = NULL;
-+ char *staging;
- unsigned int i;
- unsigned int symindex = 0;
- unsigned int strindex = 0;
-@@ -2051,6 +2052,14 @@ static noinline struct module *load_modu
- goto free_hdr;
- }
-
-+ staging = get_modinfo(sechdrs, infoindex, "staging");
-+ if (staging) {
-+ add_taint_module(mod, TAINT_CRAP);
-+ printk(KERN_WARNING "%s: module is from the staging directory,"
-+ " the quality is unknown, you have been warned.\n",
-+ mod->name);
-+ }
-+
- /* Now copy in args */
- args = strndup_user(uargs, ~0UL >> 1);
- if (IS_ERR(args)) {
-@@ -2699,6 +2708,8 @@ static char *module_flags(struct module
- buf[bx++] = 'P';
- if (mod->taints & TAINT_FORCED_MODULE)
- buf[bx++] = 'F';
-+ if (mod->taints & TAINT_CRAP)
-+ buf[bx++] = 'C';
- if (mod->taints & TAINT_NO_SUPPORT)
- buf[bx++] = 'N';
- if (mod->taints & TAINT_EXTERNAL_SUPPORT)
---- a/kernel/panic.c
-+++ b/kernel/panic.c
-@@ -178,6 +178,7 @@ EXPORT_SYMBOL(panic);
- * 'U' - Userspace-defined naughtiness.
- * 'A' - ACPI table overridden.
- * 'W' - Taint on warning.
-+ * 'C' - modules from drivers/staging are loaded.
- * 'N' - Unsuported modules loaded.
- * 'X' - Modules with external support loaded.
- *
-@@ -188,7 +189,7 @@ const char *print_tainted(void)
- {
- static char buf[20];
- if (tainted) {
-- snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c%c%c%c%c%c",
-+ snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c%c%c%c%c%c%c",
- tainted & TAINT_PROPRIETARY_MODULE ? 'P' : 'G',
- tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
- tainted & TAINT_UNSAFE_SMP ? 'S' : ' ',
-@@ -199,6 +200,7 @@ const char *print_tainted(void)
- tainted & TAINT_DIE ? 'D' : ' ',
- tainted & TAINT_OVERRIDDEN_ACPI_TABLE ? 'A' : ' ',
- tainted & TAINT_WARN ? 'W' : ' ',
-+ tainted & TAINT_CRAP ? 'C' : ' ',
- tainted & TAINT_NO_SUPPORT ? 'N' : ' ',
- tainted & TAINT_EXTERNAL_SUPPORT ? 'X' : ' ');
- }
projects / ipfire-2.x.git / blobdiff